Computer Randomly Blackscreening/Restarting

[Chewy_HD]

My rig has recently started having problems with blackscreening/restarting.

I've tried using coretemp to check the temperatures in case of overheating, I ran windows memory test, and system file checker. I had it in safe mode while running the file checker, and I didn't see it restart during that, but I may not have had it on long enough. Tested a different PSU, same problem.

My computer will randomly black screen, and the keyboard, mouse, headset will all shut off. Sometimes it reboots from the BIOS, but sometimes it won't. The LEDs, fans, etc. are still spinning though. Also occasionally it seizes up, where I can hear a Youtube Video, or something similar still playing, but my screen is frozen, and moving my mouse, ctrl + alt + del, etc. don't work, and the only solution is a restart (this may be a different problem however, and I'm more worried about the black screening for now.

CPU - Ryzen 1300x
Motherboard - ASRock AB350M Pro4
RAM - Ballistix Sport LT 2x4GB 2400MHz
CPU Cooler - Ryzen stock cooler
Video Card - Radeon 7850 (new one fried, using this in the meantime)
PSU - Corsair CX-650M
SSD - WD250GB
OS - Win10
Case - Phanteks P400 TGE
Headset - Razer Kraken 7.1 Surround
Mouse - Razer Deathadder
Keyboard - Qisan Magicforce 68-Key

 

[PuperHacker]

Sounds like PSU failure. What does event viewer say?

 

[Chewy_HD]

Sounds like PSU failure. What does event viewer say?

Huh. Well this is my first time using Event Viewer, but in the Critical Administrative events tab it says the source was "Kernel-Power" and the log being System .
Edit: I tested a different PSU, and had the same problem. The PSU I tested it with was fully functional before, and is an older Corsair 600W. Could it be a motherboard issue?